isCrystallographic

Whether this Structure is a crystallographic structure or not.
It will first check the experimental technique and if not present it will try
to guess from the presence of a space group and sensible cell parameters

isNmr

Whether this Structure is a NMR structure or not.
It will first check the experimental technique and if not present it will try
to guess from the presence of more than 1 model and from b-factors being 0 in first chain of first model

getChainByPDB

Request a chain by its public id (author id) for the given model index.
Before 5.0 it returned a Chain that had both polymeric and non-polymeric groups
following the PDB-file data model.
Since 5.0 it only returns the polymeric part of the chain.

getChainByPDB

Request a chain by its public id (author id) for the first model.
Before 5.0 it returned a Chain that had both polymeric and non-polymeric groups
following the PDB-file data model.
Since 5.0 it only returns the polymeric part of the chain.